602 



INDEX. 



Anoplura. 568. 

 Antedon, 289. 

 Antennae, 84. 

 Antenual Gland of 



Thoracostraca, 461 

 Antennularia. 242. 

 Anthophora, 598. 

 Anthozoa, 223, 229, 230. 

 Anthrax. 57(i. 

 Antimere, 25. 

 Antipatharia, 232. 

 Antipathes, 232. 

 Antliata, 572. 

 Ant-lion, 564. 

 Ants, 595. 

 Apatheon, 177. 

 Apatura, 585. 

 Aphalaspidse, 177. 

 Aphaniptera. 578. 

 Aphides, Reproduction 



of, 1U6, 128. 

 Aphis, 569, 570. 

 Aphodius, 590. 

 Aphrodite. 379. 

 Aphrophora, 571. 

 Apical plate of Annelids, 



363. 



Apical pole of Echinder- 

 mata, 268. 



Apiocrinus, 289. 



Apiocystites, 289. 



Apion'. 5ss. 

 Apis, 598. 



Apoda, 299, 446. 



Apolemia, 246, 249. 



Aporosa. 232. 



Apseudes, 45ii. 



Apsilus, 401. 



Aptera, 567. 



Apus, 419. 



Arachnida, 484. 



Araclus, 572. 



Araneida, 498. 



Arcella, 186. 



Archasoiiiscus, 451. 



Archajopteryx, 175. 



Archegosaurus, 177. 



Archenteron, 116, 117. 



Archiannelida, 365, 376. 



Archigetes, 339. 



Areuicola, 381. 



Arethusa, 249. 



Argas. 495. 



Argulus, 438. 



Argyunis, 5S5. 



Argyroneta, 499, 504. 



Arista, 573. 



Aristotle, classification 

 of, 132. 



Aristotle's lantern, 276. 



Armadillo, 457, 460. 



Arrenotokia, 543. 

 Artemia, 419. 

 Arterial, 73. 

 Artery, 62. 

 Arthropoda, 4()5. 

 Arthrostraca, 449. 

 Articulata, 2S9. 

 Ascalaphus, 564. 

 Ascaltis, 222. 

 Ascandra. 222. 

 Ascaris, 347, 346, 351. 

 AM.-dta, 222. 

 Ascilla. 222. 

 Ascomorpha. 4n4. 

 Ascon, 222. 

 Ascortis, 222. 

 Asculmis. 222. 

 Ascyssa, 222. 

 Asellus, 460. 

 Asilns. 576. 



Aspidochirotae, 298, 299. 

 Aspidiotus, 543, 569. 

 Asplanchna, 404. 

 Astacus. 477. 



Astasia,'l69. 



Asteracanthion, 285, 

 293. 



Asteriadae, 293, 279. 



Asterias, 293. 



Asteridea, 279. 292. 



Asteroidea, 279, 290. 



Asterope, 427. 



Astraea. 229, 232. 



Astraeiclse, 232. 



Astroides. 233. 



Astronyx, 294. 



Astropecten. 275, 292, 

 293. 



Astrophytou, 294. 



Atax, 495. 



Ateuchus. 590. 



Athalia. 594. 



Athorybia, 248, 249. 



Atolls* 23u. 



Atrocha, 377. 



Attacus, 5S4. 



Attagenus, 590. 



Atypus, 504. 



Auditory organs, 85. 



Aulastomum. 400. 



Aurelia, 261. 



Aurelio iSeveriuo, 133. 



Auricularia. 281. 282, 

 283, 298. 



Autolytus, 372, 379. 



Aves. vascular system 

 of, <i7. 



Bacillus, 206. 

 Bacteria, 206, 557. 

 Baer, C. E. von, 137. 



Balaninus, 5ss. 

 Baianoglossns, 299. 302. 

 Balantidium, 2o5. 

 Balanus. 446. 

 Bark lice, 127. 570. 

 Harrier reef*, 2SO. 

 Bathj-bius, 186. 

 Bathycrinus, 289. 

 Bdella, 495. 

 Bear-caterpillars, 583. 

 Bed-bug, 572. 

 Bedeguar of roses, 594. 

 Bee-louse, 575. 599. 

 Bees, 597. 

 Beetle-mites. 495. 

 Bee-wolf. 599. 

 Bell Animalcule, 198. 

 Bembex, 596. 

 Beris, 577. 

 Beroe, 264, 266. 

 Bibio, 574, 577. 

 Biesfliegen, 576. 

 Biogenesis, 96. 

 Bipalium, 315. 

 Bipinuaria, 281,283, 292. 



293. 



Bird spider, 5i>4. 

 Birgus, 478. 

 Bittacus, 563. 

 Bivium, 269. 

 Bladder- Worm, 332. 

 Blaps, 589. 

 Blastoidea, 289. 

 Blastopore, 114. 

 Blast os} ihere, 113. 

 Blastostyle. 236. 

 Blastotrochus, 227, 232. 

 Blatta. 557. 

 Blatthornkiifer, 589. 

 Blattkafer, 588. 

 Blaulinge, 585. 

 Bleudwanzen, 572. 

 Blood-corpuscles, 32. 

 Bockkafer, 588. 

 Body cavity, 50. 

 Body cavitv. }iriniarv. 



50, 116. 



Bombardirkafer, 59U. 

 Bombus, 598. 

 BombyCina, 583. 

 Bombylius, 576. 

 Bombyx, 581, 584. 

 Bone, development of ? 



40, 42. 

 Bonellia, 3;i2. 

 Bonnet, 133. 

 Book-lice, 559. 

 Bopyrus, 460. 

 Borkenkafer, 5ss. 

 Borlasia, 340. 342, 343. 

 Bos taurus, origin of, 143. 



